</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

5/16-18 Stainless Steel Acorn Nut

Decorative dome-shaped acorn nut in 304 stainless steel, 5/16-18 threading for exposed architectural fasteners. Falls under HTS 7318.16.00.60 as other stainless threaded nuts.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+57.5%57.5%
🇲🇽MexicoFree+50.0%50%
🇨🇦CanadaFree+50.0%50%
🇩🇪GermanyFree+50.0%50%
🇯🇵JapanFree+50.0%50%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7318.15.20Higher: 75% vs 57.5%

If standard steel without chrome-nickel

Lacks stainless steel alloying elements qualifying for 7318.16.

8302.41.60Lower: 53.9% vs 57.5%

If base metal mountings for furniture

Decorative nuts as furniture hardware shift to Chapter 83.

7318.29.00.00Higher: 77.8% vs 57.5%

If unthreaded dome caps

Threading defines nut classification vs similar unthreaded articles.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Specify ornamental use in invoices if architectural to support stainless premium

Avoid mixing with cap nuts that might classify under Chapter 73 closures

Require passivation certification for marine-grade stainless finishes